TMI post!! Beginning stages of labor!!?? 🤔🤔

So Im 36/2 today and I’ve been pooping for a few days now better than I have been this whole pregnancy (been extremely constipated). I’ve also been going to the bathroom a lot to pee and my discharge has changed from watery/milky to watery and now back to being regular milky discharge. This morning I notice I had some diarrhea and the only thing I’ve eaten is cereal. So my question is could this be the beginning stages of labor? Has anyone else experienced this before? My 5th pregnancy and this is definitely something new to me.